396454546 has 4 divisors (see below), whose sum is σ = 594681822. Its totient is φ = 198227272.

The previous prime is 396454489. The next prime is 396454547. The reversal of 396454546 is 645454693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645454693 = 13 ⋅49650361.

It can be written as a sum of positive squares in only one way, i.e., 376554025 + 19900521 = 19405^2 + 4461^2 .

It is a super-2 number, since 2×396454546² = 314352414088132232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396454496 and 396454505.

It is not an unprimeable number, because it can be changed into a prime (396454547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99113635 + ... + 99113638.

Almost surely, 2^396454546 is an apocalyptic number.

396454546 is a deficient number, since it is larger than the sum of its proper divisors (198227276).

396454546 is a wasteful number, since it uses less digits than its factorization.

396454546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198227275.

The product of its digits is 1555200, while the sum is 46.

The square root of 396454546 is about 19911.1663646307. The cubic root of 396454546 is about 734.6229086691.

The spelling of 396454546 in words is "three hundred ninety-six million, four hundred fifty-four thousand, five hundred forty-six".