40445031402 has 64 divisors (see below), whose sum is σ = 90203904000. Its totient is φ = 13432878000.

The previous prime is 40445031383. The next prime is 40445031463. The reversal of 40445031402 is 20413054404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 23804349 + ... + 23806047.

It is an arithmetic number, because the mean of its divisors is an integer number (1409436000).

Almost surely, 2^40445031402 is an apocalyptic number.

40445031402 is an abundant number, since it is smaller than the sum of its proper divisors (49758872598).

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

40445031402 is a wasteful number, since it uses less digits than its factorization.

40445031402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048 (or 3042 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40445031402 its reverse (20413054404), we get a palindrome (60858085806).

The spelling of 40445031402 in words is "forty billion, four hundred forty-five million, thirty-one thousand, four hundred two".