73402772 has 6 divisors (see below), whose sum is σ = 128454858. Its totient is φ = 36701384.

The previous prime is 73402759. The next prime is 73402801. The reversal of 73402772 is 27720437.

It can be written as a sum of positive squares in only one way, i.e., 70627216 + 2775556 = 8404^2 + 1666^2 .

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, 9175343 + ... + 9175350.

It is an arithmetic number, because the mean of its divisors is an integer number (21409143).

Almost surely, 2^73402772 is an apocalyptic number.

It is an amenable number.

73402772 is a deficient number, since it is larger than the sum of its proper divisors (55052086).

73402772 is a wasteful number, since it uses less digits than its factorization.

73402772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18350697 (or 18350695 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 73402772 is about 8567.5417711267. The cubic root of 73402772 is about 418.7011499561.

The spelling of 73402772 in words is "seventy-three million, four hundred two thousand, seven hundred seventy-two".