1538220462 has 16 divisors (see below), whose sum is σ = 3159588432. Its totient is φ = 498882240.

The previous prime is 1538220457. The next prime is 1538220479. The reversal of 1538220462 is 2640228351.

It is a super-2 number, since 2×1538220462² = 4732244379430986888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3464239 + ... + 3464682.

It is an arithmetic number, because the mean of its divisors is an integer number (197474277).

Almost surely, 2^1538220462 is an apocalyptic number.

1538220462 is an abundant number, since it is smaller than the sum of its proper divisors (1621367970).

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

1538220462 is a wasteful number, since it uses less digits than its factorization.

1538220462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928963.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1538220462 is about 39220.1537732834. The cubic root of 1538220462 is about 1154.3553712512.

The spelling of 1538220462 in words is "one billion, five hundred thirty-eight million, two hundred twenty thousand, four hundred sixty-two".