7940403135 has 32 divisors (see below), whose sum is σ = 16132884480. Its totient is φ = 3629898144.

The previous prime is 7940403113. The next prime is 7940403143. The reversal of 7940403135 is 5313040497.

It is not a de Polignac number, because 7940403135 - 2⁶ = 7940403071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7940403135.

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, 4200327 + ... + 4202216.

It is an arithmetic number, because the mean of its divisors is an integer number (504152640).

Almost surely, 2^7940403135 is an apocalyptic number.

7940403135 is an abundant number, since it is smaller than the sum of its proper divisors (8192481345).

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

7940403135 is a wasteful number, since it uses less digits than its factorization.

7940403135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8402564 (or 8402558 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 7940403135 is about 89108.9397030399. The cubic root of 7940403135 is about 1995.0212106965.

The spelling of 7940403135 in words is "seven billion, nine hundred forty million, four hundred three thousand, one hundred thirty-five".