72074340 has 96 divisors (see below), whose sum is σ = 241503360. Its totient is φ = 17739648.

The previous prime is 72074333. The next prime is 72074369. The reversal of 72074340 is 4347027.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1887 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (2515660).

Almost surely, 2^72074340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72074340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120751680).

72074340 is an abundant number, since it is smaller than the sum of its proper divisors (169429020).

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

72074340 is a wasteful number, since it uses less digits than its factorization.

72074340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298 (or 10290 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 72074340 is about 8489.6607706080. The cubic root of 72074340 is about 416.1598944643.

The spelling of 72074340 in words is "seventy-two million, seventy-four thousand, three hundred forty".