450023155642 has 16 divisors (see below), whose sum is σ = 677283628680. Its totient is φ = 224262865728.

The previous prime is 450023155633. The next prime is 450023155717. The reversal of 450023155642 is 246551320054.

It can be written as a sum of positive squares in 4 ways, for example, as 330819378561 + 119203777081 = 575169^2 + 345259^2 .

It is a super-2 number, since 2×450023155642² (a number of 24 digits) contains 22 as substring.

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, 753084 + ... + 1211272.

Almost surely, 2^450023155642 is an apocalyptic number.

450023155642 is a deficient number, since it is larger than the sum of its proper divisors (227260473038).

450023155642 is a wasteful number, since it uses less digits than its factorization.

450023155642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459825.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 450023155642 its reverse (246551320054), we get a palindrome (696574475696).

The spelling of 450023155642 in words is "four hundred fifty billion, twenty-three million, one hundred fifty-five thousand, six hundred forty-two".