78001374 has 16 divisors (see below), whose sum is σ = 170184960. Its totient is φ = 23636760.

The previous prime is 78001307. The next prime is 78001409. The reversal of 78001374 is 47310087.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590854 + ... + 590985.

It is an arithmetic number, because the mean of its divisors is an integer number (10636560).

Almost surely, 2^78001374 is an apocalyptic number.

78001374 is an abundant number, since it is smaller than the sum of its proper divisors (92183586).

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

78001374 is a wasteful number, since it uses less digits than its factorization.

78001374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181855.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 78001374 is about 8831.8386534175. The cubic root of 78001374 is about 427.2683769726.

It can be divided in two parts, 780013 and 74, that added together give a palindrome (780087).

The spelling of 78001374 in words is "seventy-eight million, one thousand, three hundred seventy-four".