387400541 has 4 divisors (see below), whose sum is σ = 422618784. Its totient is φ = 352182300.

The previous prime is 387400493. The next prime is 387400547. The reversal of 387400541 is 145004783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 387400541 - 2¹⁰ = 387399517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387400498 and 387400507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387400547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17609105 + ... + 17609126.

It is an arithmetic number, because the mean of its divisors is an integer number (105654696).

Almost surely, 2^387400541 is an apocalyptic number.

It is an amenable number.

387400541 is a deficient number, since it is larger than the sum of its proper divisors (35218243).

387400541 is a wasteful number, since it uses less digits than its factorization.

387400541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35218242.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 387400541 is about 19682.4932617796. The cubic root of 387400541 is about 728.9874878915.

The spelling of 387400541 in words is "three hundred eighty-seven million, four hundred thousand, five hundred forty-one".