1426867240 has 64 divisors (see below), whose sum is σ = 3321077760. Its totient is φ = 551354880.

The previous prime is 1426867231. The next prime is 1426867243. The reversal of 1426867240 is 427686241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1426867193 and 1426867202.

It is not an unprimeable number, because it can be changed into a prime (1426867243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164697 + ... + 173143.

It is an arithmetic number, because the mean of its divisors is an integer number (51891840).

Almost surely, 2^1426867240 is an apocalyptic number.

1426867240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426867240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660538880).

1426867240 is an abundant number, since it is smaller than the sum of its proper divisors (1894210520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1426867240 is a wasteful number, since it uses less digits than its factorization.

1426867240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8602 (or 8598 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1426867240 is about 37773.8962777207. The cubic root of 1426867240 is about 1125.7998565302.

1426867240 divided by its sum of digits (40) gives a triangular number (35671681 = T₈₄₄₆).

The spelling of 1426867240 in words is "one billion, four hundred twenty-six million, eight hundred sixty-seven thousand, two hundred forty".