381290837 has 8 divisors (see below), whose sum is σ = 390966912. Its totient is φ = 371680000.

The previous prime is 381290821. The next prime is 381290843. The reversal of 381290837 is 738092183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381290837 - 2⁴ = 381290821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381290794 and 381290803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381290237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364 + ... + 27957.

It is an arithmetic number, because the mean of its divisors is an integer number (48870864).

Almost surely, 2^381290837 is an apocalyptic number.

It is an amenable number.

381290837 is a deficient number, since it is larger than the sum of its proper divisors (9676075).

381290837 is a wasteful number, since it uses less digits than its factorization.

381290837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32619.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 381290837 is about 19526.6698901784. The cubic root of 381290837 is about 725.1348695583.

It can be divided in two parts, 3812 and 90837, that added together give a palindrome (94649).

The spelling of 381290837 in words is "three hundred eighty-one million, two hundred ninety thousand, eight hundred thirty-seven".