76398740 has 48 divisors (see below), whose sum is σ = 175875840. Its totient is φ = 27646080.

The previous prime is 76398737. The next prime is 76398743. The reversal of 76398740 is 4789367.

It is an interprime number because it is at equal distance from previous prime (76398737) and next prime (76398743).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 76398691 and 76398700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76398743) 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, 51854 + ... + 53306.

It is an arithmetic number, because the mean of its divisors is an integer number (3664080).

Almost surely, 2^76398740 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 76398740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87937920).

76398740 is an abundant number, since it is smaller than the sum of its proper divisors (99477100).

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

76398740 is a wasteful number, since it uses less digits than its factorization.

76398740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 76398740 is about 8740.6372765377. The cubic root of 76398740 is about 424.3218527523.

The spelling of 76398740 in words is "seventy-six million, three hundred ninety-eight thousand, seven hundred forty".