2139430 has 8 divisors (see below), whose sum is σ = 3850992. Its totient is φ = 855768.

The previous prime is 2139427. The next prime is 2139461. The reversal of 2139430 is 349312.

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

It is a congruent number.

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, 106962 + ... + 106981.

It is an arithmetic number, because the mean of its divisors is an integer number (481374).

2^2139430 is an apocalyptic number.

2139430 is a deficient number, since it is larger than the sum of its proper divisors (1711562).

2139430 is a wasteful number, since it uses less digits than its factorization.

2139430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213950.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2139430 is about 1462.6790488689. The cubic root of 2139430 is about 128.8544318756.

The spelling of 2139430 in words is "two million, one hundred thirty-nine thousand, four hundred thirty".