919840098 has 32 divisors (see below), whose sum is σ = 1867017600. Its totient is φ = 302082176.

The previous prime is 919840087. The next prime is 919840109. The reversal of 919840098 is 890048919.

It is an interprime number because it is at equal distance from previous prime (919840087) and next prime (919840109).

It is a super-2 number, since 2×919840098² = 1692211611777299208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153523 + ... + 159401.

It is an arithmetic number, because the mean of its divisors is an integer number (58344300).

Almost surely, 2^919840098 is an apocalyptic number.

919840098 is an abundant number, since it is smaller than the sum of its proper divisors (947177502).

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

919840098 is a wasteful number, since it uses less digits than its factorization.

919840098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 919840098 is about 30328.8657552504. The cubic root of 919840098 is about 972.5324755270.

The spelling of 919840098 in words is "nine hundred nineteen million, eight hundred forty thousand, ninety-eight".