74763540 has 48 divisors (see below), whose sum is σ = 232599360. Its totient is φ = 19936800.

The previous prime is 74763529. The next prime is 74763551. The reversal of 74763540 is 4536747.

It is an interprime number because it is at equal distance from previous prime (74763529) and next prime (74763551).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 74763495 and 74763504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68686 + ... + 69765.

It is an arithmetic number, because the mean of its divisors is an integer number (4845820).

Almost surely, 2^74763540 is an apocalyptic number.

It is an amenable number.

74763540 is an abundant number, since it is smaller than the sum of its proper divisors (157835820).

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

74763540 is a wasteful number, since it uses less digits than its factorization.

74763540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138469 (or 138461 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 74763540 is about 8646.5912358571. The cubic root of 74763540 is about 421.2726703130.

The spelling of 74763540 in words is "seventy-four million, seven hundred sixty-three thousand, five hundred forty".