40019612 has 24 divisors (see below), whose sum is σ = 71442000. Its totient is φ = 19611776.

The previous prime is 40019591. The next prime is 40019621. The reversal of 40019612 is 21691004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49064 + ... + 49872.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 2^40019612 is an apocalyptic number.

It is an amenable number.

40019612 is a deficient number, since it is larger than the sum of its proper divisors (31422388).

40019612 is a wasteful number, since it uses less digits than its factorization.

40019612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 40019612 is about 6326.1055950719. The cubic root of 40019612 is about 342.0510736168.

The spelling of 40019612 in words is "forty million, nineteen thousand, six hundred twelve".