1400534240 has 96 divisors (see below), whose sum is σ = 3801821184. Its totient is φ = 477596160.

The previous prime is 1400534203. The next prime is 1400534269. The reversal of 1400534240 is 424350041.

It is a super-2 number, since 2×1400534240² = 3922992314824755200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210647 + ... + 217193.

It is an arithmetic number, because the mean of its divisors is an integer number (39602304).

Almost surely, 2^1400534240 is an apocalyptic number.

1400534240 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 1400534240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1900910592).

1400534240 is an abundant number, since it is smaller than the sum of its proper divisors (2401286944).

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

1400534240 is a wasteful number, since it uses less digits than its factorization.

1400534240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1400534240 is about 37423.7122690948. The cubic root of 1400534240 is about 1118.8312212185.

Adding to 1400534240 its reverse (424350041), we get a palindrome (1824884281).

The spelling of 1400534240 in words is "one billion, four hundred million, five hundred thirty-four thousand, two hundred forty".