40700007428 has 48 divisors (see below), whose sum is σ = 79918196400. Its totient is φ = 18041425920.

The previous prime is 40700007427. The next prime is 40700007463. The reversal of 40700007428 is 82470000704.

It can be written as a sum of positive squares in 8 ways, for example, as 6229629184 + 34470378244 = 78928^2 + 185662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40700007394 and 40700007403.

It is not an unprimeable number, because it can be changed into a prime (40700007427) 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, 170843 + ... + 332546.

It is an arithmetic number, because the mean of its divisors is an integer number (1664962425).

Almost surely, 2^40700007428 is an apocalyptic number.

It is an amenable number.

40700007428 is a deficient number, since it is larger than the sum of its proper divisors (39218188972).

40700007428 is a wasteful number, since it uses less digits than its factorization.

40700007428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503480 (or 503478 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The spelling of 40700007428 in words is "forty billion, seven hundred million, seven thousand, four hundred twenty-eight".