381136942 has 16 divisors (see below), whose sum is σ = 580613472. Its totient is φ = 187608960.

The previous prime is 381136927. The next prime is 381136969. The reversal of 381136942 is 249631183.

It is a super-2 number, since 2×381136942² = 290530737114222728, which contains 22 as substring.

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, 87967 + ... + 92197.

It is an arithmetic number, because the mean of its divisors is an integer number (36288342).

Almost surely, 2^381136942 is an apocalyptic number.

381136942 is a deficient number, since it is larger than the sum of its proper divisors (199476530).

381136942 is a wasteful number, since it uses less digits than its factorization.

381136942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923.

The product of its digits is 31104, while the sum is 37.

The square root of 381136942 is about 19522.7288563869. The cubic root of 381136942 is about 725.0372978037.

The spelling of 381136942 in words is "three hundred eighty-one million, one hundred thirty-six thousand, nine hundred forty-two".