423977542 has 4 divisors (see below), whose sum is σ = 635966316. Its totient is φ = 211988770.

The previous prime is 423977539. The next prime is 423977573. The reversal of 423977542 is 245779324.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×423977542² = 359513912240723528, 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 as a sum of consecutive naturals, namely, 105994384 + ... + 105994387.

It is an arithmetic number, because the mean of its divisors is an integer number (158991579).

Almost surely, 2^423977542 is an apocalyptic number.

423977542 is a deficient number, since it is larger than the sum of its proper divisors (211988774).

423977542 is a wasteful number, since it uses less digits than its factorization.

423977542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211988773.

The product of its digits is 423360, while the sum is 43.

The square root of 423977542 is about 20590.7149463053. The cubic root of 423977542 is about 751.2438866689.

The spelling of 423977542 in words is "four hundred twenty-three million, nine hundred seventy-seven thousand, five hundred forty-two".