42698019 has 48 divisors (see below), whose sum is σ = 72099072. Its totient is φ = 21999744.

The previous prime is 42697979. The next prime is 42698021. The reversal of 42698019 is 91089624.

It is not a de Polignac number, because 42698019 - 2⁷ = 42697891 is a prime.

It is a super-2 number, since 2×42698019² = 3646241653048722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (42698069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187984 + ... + 188210.

It is an arithmetic number, because the mean of its divisors is an integer number (1502064).

Almost surely, 2^42698019 is an apocalyptic number.

42698019 is a deficient number, since it is larger than the sum of its proper divisors (29401053).

42698019 is a wasteful number, since it uses less digits than its factorization.

42698019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 42698019 is about 6534.3721197985. The cubic root of 42698019 is about 349.5177548947.

The spelling of 42698019 in words is "forty-two million, six hundred ninety-eight thousand, nineteen".