390406548 has 48 divisors (see below), whose sum is σ = 1046065664. Its totient is φ = 111011040.

The previous prime is 390406543. The next prime is 390406559. The reversal of 390406548 is 845604093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390406543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6711 + ... + 28737.

Almost surely, 2^390406548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390406548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523032832).

390406548 is an abundant number, since it is smaller than the sum of its proper divisors (655659116).

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

390406548 is a wasteful number, since it uses less digits than its factorization.

390406548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22252 (or 22250 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 390406548 is about 19758.7081561523. The cubic root of 390406548 is about 730.8681408717.

It can be divided in two parts, 3904065 and 48, that multiplied together give a triangular number (187395120 = T₁₉₃₅₉).

The spelling of 390406548 in words is "three hundred ninety million, four hundred six thousand, five hundred forty-eight".