72074012 has 6 divisors (see below), whose sum is σ = 126129528. Its totient is φ = 36037004.

The previous prime is 72074003. The next prime is 72074021. The reversal of 72074012 is 21047027.

It is an interprime number because it is at equal distance from previous prime (72074003) and next prime (72074021).

It is a super-2 number, since 2×72074012² = 10389326411552288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9009248 + ... + 9009255.

It is an arithmetic number, because the mean of its divisors is an integer number (21021588).

Almost surely, 2^72074012 is an apocalyptic number.

It is an amenable number.

72074012 is a deficient number, since it is larger than the sum of its proper divisors (54055516).

72074012 is a wasteful number, since it uses less digits than its factorization.

72074012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18018507 (or 18018505 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 72074012 is about 8489.6414529708. The cubic root of 72074012 is about 416.1592631687.

The spelling of 72074012 in words is "seventy-two million, seventy-four thousand, twelve".