403157235240 has 96 divisors (see below), whose sum is σ = 1317500238600. Its totient is φ = 106914608640.

The previous prime is 403157235233. The next prime is 403157235277. The reversal of 403157235240 is 42532751304.

403157235240 is a `hidden beast` number, since 4 + 0 + 31 + 572 + 3 + 52 + 4 + 0 = 666.

403157235240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 182710082916 + 220447152324 = 427446^2 + 469518^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 403157235195 and 403157235204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3028435 + ... + 3158754.

Almost surely, 2^403157235240 is an apocalyptic number.

403157235240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

403157235240 is an abundant number, since it is smaller than the sum of its proper divisors (914343003360).

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

403157235240 is a wasteful number, since it uses less digits than its factorization.

403157235240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187387 (or 6187380 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 403157235240 its reverse (42532751304), we get a palindrome (445689986544).

The spelling of 403157235240 in words is "four hundred three billion, one hundred fifty-seven million, two hundred thirty-five thousand, two hundred forty".