1552400022 has 16 divisors (see below), whose sum is σ = 3108510720. Its totient is φ = 516848232.

The previous prime is 1552400011. The next prime is 1552400023. The reversal of 1552400022 is 2200042551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552400023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149158 + ... + 159225.

It is an arithmetic number, because the mean of its divisors is an integer number (194281920).

Almost surely, 2^1552400022 is an apocalyptic number.

1552400022 is an abundant number, since it is smaller than the sum of its proper divisors (1556110698).

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

1552400022 is a wasteful number, since it uses less digits than its factorization.

1552400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309227.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1552400022 is about 39400.5078901275. The cubic root of 1552400022 is about 1157.8915380112.

Adding to 1552400022 its reverse (2200042551), we get a palindrome (3752442573).

The spelling of 1552400022 in words is "one billion, five hundred fifty-two million, four hundred thousand, twenty-two".