740019 has 16 divisors (see below), whose sum is σ = 1140480. Its totient is φ = 418080.

The previous prime is 740011. The next prime is 740021. The reversal of 740019 is 910047.

It is not a de Polignac number, because 740019 - 2³ = 740011 is a prime.

It is a super-2 number, since 2×740019² = 1095256240722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 739977 and 740004.

It is not an unprimeable number, because it can be changed into a prime (740011) 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 15 ways as a sum of consecutive naturals, for example, 2617 + ... + 2885.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2⁷⁴⁰⁰¹⁹ is an apocalyptic number.

740019 is a deficient number, since it is larger than the sum of its proper divisors (400461).

740019 is a wasteful number, since it uses less digits than its factorization.

740019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 740019 is about 860.2435701591. The cubic root of 740019 is about 90.4511910837.

The spelling of 740019 in words is "seven hundred forty thousand, nineteen".