423400562 has 16 divisors (see below), whose sum is σ = 684461400. Its totient is φ = 195270912.

The previous prime is 423400553. The next prime is 423400577. The reversal of 423400562 is 265004324.

It can be written as a sum of positive squares in 4 ways, for example, as 102596641 + 320803921 = 10129^2 + 17911^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35018 + ... + 45530.

Almost surely, 2^423400562 is an apocalyptic number.

423400562 is a deficient number, since it is larger than the sum of its proper divisors (261060838).

423400562 is a wasteful number, since it uses less digits than its factorization.

423400562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12077.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 423400562 is about 20576.6994923870. The cubic root of 423400562 is about 750.9029492148.

Adding to 423400562 its reverse (265004324), we get a palindrome (688404886).

The spelling of 423400562 in words is "four hundred twenty-three million, four hundred thousand, five hundred sixty-two".