1427402172 has 96 divisors (see below), whose sum is σ = 3981164544. Its totient is φ = 389188800.

The previous prime is 1427402159. The next prime is 1427402183. The reversal of 1427402172 is 2712047241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1566397 + ... + 1567307.

It is an arithmetic number, because the mean of its divisors is an integer number (41470464).

Almost surely, 2^1427402172 is an apocalyptic number.

1427402172 is a gapful number since it is divisible by the number (12) 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 1427402172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1990582272).

1427402172 is an abundant number, since it is smaller than the sum of its proper divisors (2553762372).

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

1427402172 is a wasteful number, since it uses less digits than its factorization.

1427402172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 1427402172 is about 37780.9763240708. The cubic root of 1427402172 is about 1125.9405262691.

The spelling of 1427402172 in words is "one billion, four hundred twenty-seven million, four hundred two thousand, one hundred seventy-two".