1542202490 has 8 divisors (see below), whose sum is σ = 2775964500. Its totient is φ = 616880992.

The previous prime is 1542202489. The next prime is 1542202511. The reversal of 1542202490 is 942022451.

It can be written as a sum of positive squares in 2 ways, for example, as 1534210561 + 7991929 = 39169^2 + 2827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77110115 + ... + 77110134.

Almost surely, 2^1542202490 is an apocalyptic number.

1542202490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1542202490 is a deficient number, since it is larger than the sum of its proper divisors (1233762010).

1542202490 is a wasteful number, since it uses less digits than its factorization.

1542202490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154220256.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1542202490 is about 39270.8860353316. The cubic root of 1542202490 is about 1155.3506153684.

The spelling of 1542202490 in words is "one billion, five hundred forty-two million, two hundred two thousand, four hundred ninety".