73515740 has 24 divisors (see below), whose sum is σ = 154578480. Its totient is φ = 29369088.

The previous prime is 73515733. The next prime is 73515749. The reversal of 73515740 is 4751537.

It is a junction number, because it is equal to n+sod(n) for n = 73515697 and 73515706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73515749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18359 + ... + 22001.

It is an arithmetic number, because the mean of its divisors is an integer number (6440770).

Almost surely, 2^73515740 is an apocalyptic number.

It is an amenable number.

73515740 is an abundant number, since it is smaller than the sum of its proper divisors (81062740).

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

73515740 is a wasteful number, since it uses less digits than its factorization.

73515740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 73515740 is about 8574.1320260421. The cubic root of 73515740 is about 418.9158357047.

The spelling of 73515740 in words is "seventy-three million, five hundred fifteen thousand, seven hundred forty".