152978394 has 32 divisors (see below), whose sum is σ = 310210560. Its totient is φ = 50289200.

The previous prime is 152978389. The next prime is 152978401. The reversal of 152978394 is 493879251.

152978394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 149617 + ... + 150635.

It is an arithmetic number, because the mean of its divisors is an integer number (9694080).

Almost surely, 2^152978394 is an apocalyptic number.

152978394 is an abundant number, since it is smaller than the sum of its proper divisors (157232166).

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

152978394 is a wasteful number, since it uses less digits than its factorization.

152978394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its digits is 544320, while the sum is 48.

The square root of 152978394 is about 12368.4434752316. The cubic root of 152978394 is about 534.8229466238.

The spelling of 152978394 in words is "one hundred fifty-two million, nine hundred seventy-eight thousand, three hundred ninety-four".