1920030242 has 8 divisors (see below), whose sum is σ = 3101587356. Its totient is φ = 886167792.

The previous prime is 1920030239. The next prime is 1920030251. The reversal of 1920030242 is 2420300291.

It can be written as a sum of positive squares in 2 ways, for example, as 1491581641 + 428448601 = 38621^2 + 20699^2 .

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

It is a super-2 number, since 2×1920030242² = 7373032260389157128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36923633 + ... + 36923684.

Almost surely, 2^1920030242 is an apocalyptic number.

1920030242 is a deficient number, since it is larger than the sum of its proper divisors (1181557114).

1920030242 is a wasteful number, since it uses less digits than its factorization.

1920030242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73847332.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1920030242 is about 43818.1496870874. The cubic root of 1920030242 is about 1242.8995279671.

The spelling of 1920030242 in words is "one billion, nine hundred twenty million, thirty thousand, two hundred forty-two".