73749620 has 48 divisors (see below), whose sum is σ = 182719488. Its totient is φ = 24468480.

The previous prime is 73749619. The next prime is 73749623. The reversal of 73749620 is 2694737.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73749623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4157 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (3806656).

Almost surely, 2^73749620 is an apocalyptic number.

73749620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73749620 is an abundant number, since it is smaller than the sum of its proper divisors (108969868).

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

73749620 is a wasteful number, since it uses less digits than its factorization.

73749620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17040 (or 17038 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 73749620 is about 8587.7598941750. The cubic root of 73749620 is about 419.3596060678.

The spelling of 73749620 in words is "seventy-three million, seven hundred forty-nine thousand, six hundred twenty".